package org.json;

/*
 * Copyright (c) 2002 JSON.org
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * The Software shall be used for Good, not Evil.
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import java.io.IOException;
import java.io.Writer;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;

/**
 * A JSONArray is an ordered sequence of values. Its external text form is a string wrapped in square brackets with commas
 * separating the values. The internal form is an object having <code>get</code> and <code>opt</code> methods for accessing the
 * values by index, and <code>put</code> methods for adding or replacing values. The values can be any of these types:
 * <code>Boolean</code>, <code>JSONArray</code>, <code>JSONObject</code>, <code>Number</code>, <code>String</code>, or the
 * <code>JSONObject.NULL object</code>.
 * <p>
 * The constructor can convert a JSON text into a Java object. The <code>toString</code> method converts to JSON text.
 * <p>
 * A <code>get</code> method returns a value if one can be found, and throws an exception if one cannot be found. An
 * <code>opt</code> method returns a default value instead of throwing an exception, and so is useful for obtaining optional
 * values.
 * <p>
 * The generic <code>get()</code> and <code>opt()</code> methods return an object which you can cast or query for type. There are
 * also typed <code>get</code> and <code>opt</code> methods that do type checking and type coercion for you.
 * <p>
 * The texts produced by the <code>toString</code> methods strictly conform to JSON syntax rules. The constructors are more
 * forgiving in the texts they will accept:
 * <ul>
 * <li>An extra <code>,</code>&nbsp;<small>(comma)</small> may appear just before the closing bracket.</li>
 * <li>The <code>null</code> value will be inserted when there is <code>,</code>&nbsp;<small>(comma)</small> elision.</li>
 * <li>Strings may be quoted with <code>'</code>&nbsp;<small>(single quote)</small>.</li>
 * <li>Strings do not need to be quoted at all if they do not begin with a quote or single quote, and if they do not contain
 * leading or trailing spaces, and if they do not contain any of these characters: <code>{ } [ ] / \ : , = ; #</code> and if they
 * do not look like numbers and if they are not the reserved words <code>true</code>, <code>false</code>, or <code>null</code>.</li>
 * <li>Values can be separated by <code>;</code> <small>(semicolon)</small> as well as by <code>,</code> <small>(comma)</small>.</li>
 * <li>Numbers may have the <code>0x-</code> <small>(hex)</small> prefix.</li>
 * </ul>
 * 
 * @author JSON.org
 * @version 2009-04-14
 */
public class JSONArray {

   /**
    * The arrayList where the JSONArray's properties are kept.
    */
   private final ArrayList<Object> myArrayList;

   /**
    * Construct an empty JSONArray.
    */
   public JSONArray() {
	  myArrayList = new ArrayList<Object>();
   }

   /**
    * Construct a JSONArray from a Collection.
    * 
    * @param collection
    *           A Collection.
    */
   public JSONArray(final Collection<Object> collection) {
	  myArrayList = new ArrayList<Object>();
	  if (collection != null) {
		 Iterator<Object> iter = collection.iterator();
		 while (iter.hasNext()) {
			Object o = iter.next();
			myArrayList.add(JSONObject.wrap(o));
		 }
	  }
   }

   /**
    * Construct a JSONArray from a JSONTokener.
    * 
    * @param x
    *           A JSONTokener
    * @throws JSONException
    *            If there is a syntax error.
    */
   public JSONArray(final JSONTokener x) throws JSONException {
	  this();
	  char c = x.nextClean();
	  char q;
	  if (c == '[') {
		 q = ']';
	  } else if (c == '(') {
		 q = ')';
	  } else
		 throw x.syntaxError("A JSONArray text must start with '['");
	  if (x.nextClean() == ']')
		 return;
	  x.back();
	  for (;;) {
		 if (x.nextClean() == ',') {
			x.back();
			myArrayList.add(null);
		 } else {
			x.back();
			myArrayList.add(x.nextValue());
		 }
		 c = x.nextClean();
		 switch (c) {
		 case ';':
		 case ',':
			if (x.nextClean() == ']')
			   return;
			x.back();
			break;
		 case ']':
		 case ')':
			if (q != c)
			   throw x.syntaxError("Expected a '" + Character.valueOf(q) + "'");
			return;
		 default:
			throw x.syntaxError("Expected a ',' or ']'");
		 }
	  }
   }

   /**
    * Construct a JSONArray from an array
    * 
    * @throws JSONException
    *            If not an array.
    */
   public JSONArray(final Object array) throws JSONException {
	  this();
	  if (array.getClass().isArray()) {
		 int length = Array.getLength(array);
		 for (int i = 0; i < length; i += 1) {
			this.put(JSONObject.wrap(Array.get(array, i)));
		 }
	  } else
		 throw new JSONException("JSONArray initial value should be a string or collection or array.");
   }

   /**
    * Construct a JSONArray from a source JSON text.
    * 
    * @param source
    *           A string that begins with <code>[</code>&nbsp;<small>(left bracket)</small> and ends with <code>]</code>
    *           &nbsp;<small>(right bracket)</small>.
    * @throws JSONException
    *            If there is a syntax error.
    */
   public JSONArray(final String source) throws JSONException {
	  this(new JSONTokener(source));
   }

   /**
    * Get the object value associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return An object value.
    * @throws JSONException
    *            If there is no value for the index.
    */
   public Object get(final int index) throws JSONException {
	  Object o = opt(index);
	  if (o == null)
		 throw new JSONException("JSONArray[" + index + "] not found.");
	  return o;
   }

   /**
    * Get the boolean value associated with an index. The string values "true" and "false" are converted to boolean.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The truth.
    * @throws JSONException
    *            If there is no value for the index or if the value is not convertable to boolean.
    */
   public boolean getBoolean(final int index) throws JSONException {
	  Object o = get(index);
	  if (o.equals(Boolean.FALSE) || o instanceof String && ((String) o).equalsIgnoreCase("false"))
		 return false;
	  else if (o.equals(Boolean.TRUE) || o instanceof String && ((String) o).equalsIgnoreCase("true"))
		 return true;
	  throw new JSONException("JSONArray[" + index + "] is not a Boolean.");
   }

   /**
    * Get the double value associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The value.
    * @throws JSONException
    *            If the key is not found or if the value cannot be converted to a number.
    */
   public double getDouble(final int index) throws JSONException {
	  Object o = get(index);
	  try {
		 return o instanceof Number ? ((Number) o).doubleValue() : Double.valueOf((String) o).doubleValue();
	  } catch (Exception e) {
		 throw new JSONException("JSONArray[" + index + "] is not a number.");
	  }
   }

   /**
    * Get the int value associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The value.
    * @throws JSONException
    *            If the key is not found or if the value cannot be converted to a number. if the value cannot be converted to a
    *            number.
    */
   public int getInt(final int index) throws JSONException {
	  Object o = get(index);
	  return o instanceof Number ? ((Number) o).intValue() : (int) getDouble(index);
   }

   /**
    * Get the JSONArray associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return A JSONArray value.
    * @throws JSONException
    *            If there is no value for the index. or if the value is not a JSONArray
    */
   public JSONArray getJSONArray(final int index) throws JSONException {
	  Object o = get(index);
	  if (o instanceof JSONArray)
		 return (JSONArray) o;
	  throw new JSONException("JSONArray[" + index + "] is not a JSONArray.");
   }

   /**
    * Get the JSONObject associated with an index.
    * 
    * @param index
    *           subscript
    * @return A JSONObject value.
    * @throws JSONException
    *            If there is no value for the index or if the value is not a JSONObject
    */
   public JSONObject getJSONObject(final int index) throws JSONException {
	  Object o = get(index);
	  if (o instanceof JSONObject)
		 return (JSONObject) o;
	  throw new JSONException("JSONArray[" + index + "] is not a JSONObject.");
   }

   /**
    * Get the long value associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The value.
    * @throws JSONException
    *            If the key is not found or if the value cannot be converted to a number.
    */
   public long getLong(final int index) throws JSONException {
	  Object o = get(index);
	  return o instanceof Number ? ((Number) o).longValue() : (long) getDouble(index);
   }

   /**
    * Get the string associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return A string value.
    * @throws JSONException
    *            If there is no value for the index.
    */
   public String getString(final int index) throws JSONException {
	  return get(index).toString();
   }

   /**
    * Determine if the value is null.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return true if the value at the index is null, or if there is no value.
    */
   public boolean isNull(final int index) {
	  return JSONObject.NULL.equals(opt(index));
   }

   /**
    * Make a string from the contents of this JSONArray. The <code>separator</code> string is inserted between each element.
    * Warning: This method assumes that the data structure is acyclical.
    * 
    * @param separator
    *           A string that will be inserted between the elements.
    * @return a string.
    * @throws JSONException
    *            If the array contains an invalid number.
    */
   public String join(final String separator) throws JSONException {
	  int len = length();
	  StringBuffer sb = new StringBuffer();

	  for (int i = 0; i < len; i += 1) {
		 if (i > 0) {
			sb.append(separator);
		 }
		 sb.append(JSONObject.valueToString(myArrayList.get(i)));
	  }
	  return sb.toString();
   }

   /**
    * Get the number of elements in the JSONArray, included nulls.
    * 
    * @return The length (or size).
    */
   public int length() {
	  return myArrayList.size();
   }

   /**
    * Get the optional object value associated with an index.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return An object value, or null if there is no object at that index.
    */
   public Object opt(final int index) {
	  return index < 0 || index >= length() ? null : myArrayList.get(index);
   }

   /**
    * Get the optional boolean value associated with an index. It returns false if there is no value at that index, or if the
    * value is not Boolean.TRUE or the String "true".
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The truth.
    */
   public boolean optBoolean(final int index) {
	  return optBoolean(index, false);
   }

   /**
    * Get the optional boolean value associated with an index. It returns the defaultValue if there is no value at that index or
    * if it is not a Boolean or the String "true" or "false" (case insensitive).
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @param defaultValue
    *           A boolean default.
    * @return The truth.
    */
   public boolean optBoolean(final int index, final boolean defaultValue) {
	  try {
		 return getBoolean(index);
	  } catch (Exception e) {
		 return defaultValue;
	  }
   }

   /**
    * Get the optional double value associated with an index. NaN is returned if there is no value for the index, or if the value
    * is not a number and cannot be converted to a number.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The value.
    */
   public double optDouble(final int index) {
	  return optDouble(index, Double.NaN);
   }

   /**
    * Get the optional double value associated with an index. The defaultValue is returned if there is no value for the index, or
    * if the value is not a number and cannot be converted to a number.
    * 
    * @param index
    *           subscript
    * @param defaultValue
    *           The default value.
    * @return The value.
    */
   public double optDouble(final int index, final double defaultValue) {
	  try {
		 return getDouble(index);
	  } catch (Exception e) {
		 return defaultValue;
	  }
   }

   /**
    * Get the optional int value associated with an index. Zero is returned if there is no value for the index, or if the value is
    * not a number and cannot be converted to a number.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The value.
    */
   public int optInt(final int index) {
	  return optInt(index, 0);
   }

   /**
    * Get the optional int value associated with an index. The defaultValue is returned if there is no value for the index, or if
    * the value is not a number and cannot be converted to a number.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @param defaultValue
    *           The default value.
    * @return The value.
    */
   public int optInt(final int index, final int defaultValue) {
	  try {
		 return getInt(index);
	  } catch (Exception e) {
		 return defaultValue;
	  }
   }

   /**
    * Get the optional JSONArray associated with an index.
    * 
    * @param index
    *           subscript
    * @return A JSONArray value, or null if the index has no value, or if the value is not a JSONArray.
    */
   public JSONArray optJSONArray(final int index) {
	  Object o = opt(index);
	  return o instanceof JSONArray ? (JSONArray) o : null;
   }

   /**
    * Get the optional JSONObject associated with an index. Null is returned if the key is not found, or null if the index has no
    * value, or if the value is not a JSONObject.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return A JSONObject value.
    */
   public JSONObject optJSONObject(final int index) {
	  Object o = opt(index);
	  return o instanceof JSONObject ? (JSONObject) o : null;
   }

   /**
    * Get the optional long value associated with an index. Zero is returned if there is no value for the index, or if the value
    * is not a number and cannot be converted to a number.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return The value.
    */
   public long optLong(final int index) {
	  return optLong(index, 0);
   }

   /**
    * Get the optional long value associated with an index. The defaultValue is returned if there is no value for the index, or if
    * the value is not a number and cannot be converted to a number.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @param defaultValue
    *           The default value.
    * @return The value.
    */
   public long optLong(final int index, final long defaultValue) {
	  try {
		 return getLong(index);
	  } catch (Exception e) {
		 return defaultValue;
	  }
   }

   /**
    * Get the optional string value associated with an index. It returns an empty string if there is no value at that index. If
    * the value is not a string and is not null, then it is coverted to a string.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @return A String value.
    */
   public String optString(final int index) {
	  return optString(index, "");
   }

   /**
    * Get the optional string associated with an index. The defaultValue is returned if the key is not found.
    * 
    * @param index
    *           The index must be between 0 and length() - 1.
    * @param defaultValue
    *           The default value.
    * @return A String value.
    */
   public String optString(final int index, final String defaultValue) {
	  Object o = opt(index);
	  return o != null ? o.toString() : defaultValue;
   }

   /**
    * Append a boolean value. This increases the array's length by one.
    * 
    * @param value
    *           A boolean value.
    * @return this.
    */
   public JSONArray put(final boolean value) {
	  put(value ? Boolean.TRUE : Boolean.FALSE);
	  return this;
   }

   /**
    * Put a value in the JSONArray, where the value will be a JSONArray which is produced from a Collection.
    * 
    * @param value
    *           A Collection value.
    * @return this.
    */
   public JSONArray put(final Collection<Object> value) {
	  put(new JSONArray(value));
	  return this;
   }

   /**
    * Append a double value. This increases the array's length by one.
    * 
    * @param value
    *           A double value.
    * @throws JSONException
    *            if the value is not finite.
    * @return this.
    */
   public JSONArray put(final double value) throws JSONException {
	  Double d = new Double(value);
	  JSONObject.testValidity(d);
	  put(d);
	  return this;
   }

   /**
    * Append an int value. This increases the array's length by one.
    * 
    * @param value
    *           An int value.
    * @return this.
    */
   public JSONArray put(final int value) {
	  put(Integer.valueOf(value));
	  return this;
   }

   /**
    * Put or replace a boolean value in the JSONArray. If the index is greater than the length of the JSONArray, then null
    * elements will be added as necessary to pad it out.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           A boolean value.
    * @return this.
    * @throws JSONException
    *            If the index is negative.
    */
   public JSONArray put(final int index, final boolean value) throws JSONException {
	  put(index, value ? Boolean.TRUE : Boolean.FALSE);
	  return this;
   }

   /**
    * Put a value in the JSONArray, where the value will be a JSONArray which is produced from a Collection.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           A Collection value.
    * @return this.
    * @throws JSONException
    *            If the index is negative or if the value is not finite.
    */
   public JSONArray put(final int index, final Collection<Object> value) throws JSONException {
	  put(index, new JSONArray(value));
	  return this;
   }

   /**
    * Put or replace a double value. If the index is greater than the length of the JSONArray, then null elements will be added as
    * necessary to pad it out.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           A double value.
    * @return this.
    * @throws JSONException
    *            If the index is negative or if the value is not finite.
    */
   public JSONArray put(final int index, final double value) throws JSONException {
	  put(index, new Double(value));
	  return this;
   }

   /**
    * Put or replace an int value. If the index is greater than the length of the JSONArray, then null elements will be added as
    * necessary to pad it out.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           An int value.
    * @return this.
    * @throws JSONException
    *            If the index is negative.
    */
   public JSONArray put(final int index, final int value) throws JSONException {
	  put(index, Integer.valueOf(value));
	  return this;
   }

   /**
    * Put or replace a long value. If the index is greater than the length of the JSONArray, then null elements will be added as
    * necessary to pad it out.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           A long value.
    * @return this.
    * @throws JSONException
    *            If the index is negative.
    */
   public JSONArray put(final int index, final long value) throws JSONException {
	  put(index, Long.valueOf(value));
	  return this;
   }

   /**
    * Put a value in the JSONArray, where the value will be a JSONObject which is produced from a Map.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           The Map value.
    * @return this.
    * @throws JSONException
    *            If the index is negative or if the the value is an invalid number.
    */
   public JSONArray put(final int index, final Map<Object, Object> value) throws JSONException {
	  put(index, new JSONObject(value));
	  return this;
   }

   /**
    * Put or replace an object value in the JSONArray. If the index is greater than the length of the JSONArray, then null
    * elements will be added as necessary to pad it out.
    * 
    * @param index
    *           The subscript.
    * @param value
    *           The value to put into the array. The value should be a Boolean, Double, Integer, JSONArray, JSONObject, Long, or
    *           String, or the JSONObject.NULL object.
    * @return this.
    * @throws JSONException
    *            If the index is negative or if the the value is an invalid number.
    */
   public JSONArray put(final int index, final Object value) throws JSONException {
	  JSONObject.testValidity(value);
	  if (index < 0)
		 throw new JSONException("JSONArray[" + index + "] not found.");
	  if (index < length()) {
		 myArrayList.set(index, value);
	  } else {
		 while (index != length()) {
			put(JSONObject.NULL);
		 }
		 put(value);
	  }
	  return this;
   }

   /**
    * Append an long value. This increases the array's length by one.
    * 
    * @param value
    *           A long value.
    * @return this.
    */
   public JSONArray put(final long value) {
	  put(Long.valueOf(value));
	  return this;
   }

   /**
    * Put a value in the JSONArray, where the value will be a JSONObject which is produced from a Map.
    * 
    * @param value
    *           A Map value.
    * @return this.
    */
   public JSONArray put(final Map<Object, Object> value) {
	  put(new JSONObject(value));
	  return this;
   }

   /**
    * Append an object value. This increases the array's length by one.
    * 
    * @param value
    *           An object value. The value should be a Boolean, Double, Integer, JSONArray, JSONObject, Long, or String, or the
    *           JSONObject.NULL object.
    * @return this.
    */
   public JSONArray put(final Object value) {
	  myArrayList.add(value);
	  return this;
   }

   /**
    * Remove an index and close the hole.
    * 
    * @param index
    *           The index of the element to be removed.
    * @return The value that was associated with the index, or null if there was no value.
    */
   public Object remove(final int index) {
	  Object o = opt(index);
	  myArrayList.remove(index);
	  return o;
   }

   /**
    * Produce a JSONObject by combining a JSONArray of names with the values of this JSONArray.
    * 
    * @param names
    *           A JSONArray containing a list of key strings. These will be paired with the values.
    * @return A JSONObject, or null if there are no names or if this JSONArray has no values.
    * @throws JSONException
    *            If any of the names are null.
    */
   public JSONObject toJSONObject(final JSONArray names) throws JSONException {
	  if (names == null || names.length() == 0 || length() == 0)
		 return null;
	  JSONObject jo = new JSONObject();
	  for (int i = 0; i < names.length(); i += 1) {
		 jo.put(names.getString(i), opt(i));
	  }
	  return jo;
   }

   /**
    * Make a JSON text of this JSONArray. For compactness, no unnecessary whitespace is added. If it is not possible to produce a
    * syntactically correct JSON text then null will be returned instead. This could occur if the array contains an invalid
    * number.
    * <p>
    * Warning: This method assumes that the data structure is acyclical.
    * 
    * @return a printable, displayable, transmittable representation of the array.
    */
   @Override
   public String toString() {
	  try {
		 return '[' + join(",") + ']';
	  } catch (Exception e) {
		 return null;
	  }
   }

   /**
    * Make a prettyprinted JSON text of this JSONArray. Warning: This method assumes that the data structure is acyclical.
    * 
    * @param indentFactor
    *           The number of spaces to add to each level of indentation.
    * @return a printable, displayable, transmittable representation of the object, beginning with <code>[</code>
    *         &nbsp;<small>(left bracket)</small> and ending with <code>]</code>&nbsp;<small>(right bracket)</small>.
    * @throws JSONException
    */
   public String toString(final int indentFactor) throws JSONException {
	  return toString(indentFactor, 0);
   }

   /**
    * Make a prettyprinted JSON text of this JSONArray. Warning: This method assumes that the data structure is acyclical.
    * 
    * @param indentFactor
    *           The number of spaces to add to each level of indentation.
    * @param indent
    *           The indention of the top level.
    * @return a printable, displayable, transmittable representation of the array.
    * @throws JSONException
    */
   String toString(final int indentFactor, final int indent) throws JSONException {
	  int len = length();
	  if (len == 0)
		 return "[]";
	  int i;
	  StringBuffer sb = new StringBuffer("[");
	  if (len == 1) {
		 sb.append(JSONObject.valueToString(myArrayList.get(0), indentFactor, indent));
	  } else {
		 int newindent = indent + indentFactor;
		 sb.append('\n');
		 for (i = 0; i < len; i += 1) {
			if (i > 0) {
			   sb.append(",\n");
			}
			for (int j = 0; j < newindent; j += 1) {
			   sb.append(' ');
			}
			sb.append(JSONObject.valueToString(myArrayList.get(i), indentFactor, newindent));
		 }
		 sb.append('\n');
		 for (i = 0; i < indent; i += 1) {
			sb.append(' ');
		 }
	  }
	  sb.append(']');
	  return sb.toString();
   }

   /**
    * Write the contents of the JSONArray as JSON text to a writer. For compactness, no whitespace is added.
    * <p>
    * Warning: This method assumes that the data structure is acyclical.
    * 
    * @return The writer.
    * @throws JSONException
    */
   public Writer write(final Writer writer) throws JSONException {
	  try {
		 boolean b = false;
		 int len = length();

		 writer.write('[');

		 for (int i = 0; i < len; i += 1) {
			if (b) {
			   writer.write(',');
			}
			Object v = myArrayList.get(i);
			if (v instanceof JSONObject) {
			   ((JSONObject) v).write(writer);
			} else if (v instanceof JSONArray) {
			   ((JSONArray) v).write(writer);
			} else {
			   writer.write(JSONObject.valueToString(v));
			}
			b = true;
		 }
		 writer.write(']');
		 return writer;
	  } catch (IOException e) {
		 throw new JSONException(e);
	  }
   }
}